Robert Dudden

What does fault code P047F00 mean? If your vehicle has developed the fault code P047F00 – Exhaust Pressure Control Valve ‘A’, Stuck Open, you may experience an engine management warning light, reduced performance, poor regeneration, or other exhaust-system-related issues. The exhaust pressure control valve plays an important role in controlling exhaust-gas flow and pressure. If the ECU detects that the valve is remaining open when it should be closing, it can store the P047F00 fault code and...

If your diesel vehicle has displayed an AdBlue warning, engine management light or emissions fault, you may have had the diagnostic trouble code P20EE00 – SCR NOx Catalyst Efficiency Below Threshold (Bank 1). This is a common fault code on modern diesel vehicles fitted with an SCR (Selective Catalytic Reduction) and AdBlue system. But one important thing to understand is that P20EE00 does not automatically mean the SCR catalytic converter needs replacing. The fault code is telling you that...

AdBlue Warning Light or SCR Fault? Get the Problem Properly Diagnosed Modern diesel vehicles use sophisticated AdBlue and SCR (Selective Catalytic Reduction) systems to reduce harmful NOx emissions. When something goes wrong, the vehicle can display an AdBlue warning, engine management light, emissions warning or even a countdown to a potential no-start condition. The problem is that an AdBlue fault code doesn’t always mean that the component mentioned in the code is actually the part that...